A sand loess geological cast-in-place pile mud slurry proportioning control device

By designing a mud slurry ratio control device for bored piles in sandy loess soil, a motor and threaded rod are used to drive the perforated plate to move. Combined with a cylinder and gear mechanism, the problem of inaccurate water and bentonite ratio in bored piles in sandy loess soil is solved, and the stability and accuracy of the mud slurry product are achieved.

CN224446382UActive Publication Date: 2026-07-03NINGBO MUNICIPAL ENG CONSTR GROUP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MUNICIPAL ENG CONSTR GROUP
Filing Date
2025-07-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the drilling and grouting of sandy loess piles, existing technologies make it difficult to accurately control the ratio of water and bentonite, resulting in unstable quality of the finished mud.

Method used

A mud mixing control device for bored piles in sandy loess soil was designed. The device uses a motor to drive a threaded rod and a threaded block to move a perforated plate. Combined with a cylinder and gear mechanism, it can achieve precise separation and mixing control of water and bentonite.

Benefits of technology

It achieves a precise ratio of water and bentonite, ensuring accurate mixing of the mud and improving the quality of the finished mud product.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model belongs to the field of grout mixing for bored piles, specifically a grout mixing control device for bored piles in sandy loess geology. It includes a base plate, a mixing box on top of the base plate, an L-shaped plate fixedly connected to the top of the base plate, and a material bucket fixedly connected to one side of the L-shaped plate. The device uses a threaded rod to move a first perforated plate and a second perforated plate via a threaded block and a U-shaped rod. Simultaneously, the threaded block moves a triangular block across a scale plate to precisely move the position of the first perforated plate. When the first perforated plate reaches the required mixing ratio, a cylinder is activated to move a rack. The rack then rotates the gear, the fixed rod, and the second perforated plate together, causing the holes in the second and first perforated plates to interlock. This allows for the separation of water or bentonite inside the material bucket, thus accurately controlling the amount of water or bentonite and making the mixing ratio more precise and controllable.
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Description

Technical Field

[0001] This utility model relates to the field of grout mixing ratio for cast-in-place piles, specifically a grout mixing ratio control device for bored cast-in-place piles in sandy loess geology. Background Technology

[0002] Drilled cast-in-place piles are piles made by forming pile holes in the foundation soil through mechanical drilling, steel pipe soil displacement, or manual excavation on the engineering site, and then placing a steel cage in the hole and pouring concrete. According to different hole-forming methods, cast-in-place piles can be divided into several categories such as driven cast-in-place piles, drilled cast-in-place piles, and excavated cast-in-place piles.

[0003] In existing technologies, sandy loess is a loess stratum containing a large amount of fine sand particles, which has poor bearing capacity. Therefore, it is necessary to increase the bearing capacity by drilling and grouting piles. After drilling, mud is poured to form the pile. However, mud is mainly composed of water, bentonite, and regulators. The mud is better formed by mixing the proportions. However, it is not convenient to accurately control the proportions of water and bentonite in advance when mixing them. This can easily lead to situations where too much or too little water or bentonite is added during mixing, which reduces the quality of the mud. Utility Model Content

[0004] To address the shortcomings of existing technologies, which make it inconvenient to accurately control the ratio of water and bentonite during mixing, leading to situations where too much or too little water or bentonite is added, thus reducing the quality of the final mud, this invention proposes a mud ratio control device for bored piles in sandy loess soil.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a mud proportioning control device for bored piles in sandy loess geology, including a base plate, a mixing box provided on the top of the base plate, an L-shaped plate fixedly connected to the top of the base plate, a material bucket fixedly connected to one side of the L-shaped plate, a discharge port opened on the surface of the material bucket, a solenoid valve fixedly connected to the inner cavity of the discharge port, and a proportioning mechanism provided in the inner cavity of the material bucket;

[0006] The proportioning mechanism includes a support plate, one side of which is fixedly connected to the surface of the material barrel. A motor is fixedly connected to the top of the support plate, and a threaded rod is fixedly connected to the output shaft of the motor. A threaded block is threadedly connected to the surface of the threaded rod. A U-shaped rod is provided in the inner cavity of the material barrel, one side of which is fixedly connected to one side of the threaded block. A first perforated plate is provided in the inner cavity of the material barrel, the top of which is fixedly connected to the bottom of the U-shaped rod, and a second perforated plate is rotatably connected to the top of the first perforated plate.

[0007] Preferably, a fixing rod is fixedly connected to the top of the second perforated plate, a gear is fixedly connected to the surface of the fixing rod, a cylinder is fixedly connected to the top of the material bucket, a rack is fixedly connected to one side of the cylinder, and the teeth of the rack mesh with the teeth of the gear.

[0008] Preferably, a scale plate is fixedly connected to the surface of the material barrel, and a triangular block is provided on one side of the scale plate. One side of the triangular block is fixedly connected to one side of the threaded block.

[0009] Preferably, the surface of the first perforated plate is provided with a placement groove, and a T-shaped block is rotatably connected to the inner cavity of the placement groove. The top of the T-shaped block is fixedly connected to the bottom of the second perforated plate.

[0010] Preferably, a connecting block is fixedly connected to the top of the material barrel, a hollow block is fixedly connected to the top of the connecting block, a rotating block is provided in the inner cavity of the hollow block, and the bottom of the rotating block is fixedly connected to the bottom of the threaded rod.

[0011] Preferably, a reinforcing rod is fixedly connected to the inner cavity of the material barrel, and the top of the reinforcing rod is fixedly connected to the bottom of the cylinder.

[0012] Preferably, the surface of the motor is provided with a protective shell, and the bottom of the protective shell is fixedly connected to the top of the support plate.

[0013] The advantages of this utility model are:

[0014] This invention utilizes a motor that drives a threaded block via a threaded rod. The threaded block, through a U-shaped rod, moves a first perforated plate inside the material bucket. Simultaneously, the threaded block also causes a triangular block to slide on the surface of a graduated plate, precisely positioning the first perforated plate. The first perforated plate then moves a second perforated plate. The water and bentonite inside the material bucket do not obstruct the movement of the perforated plates. When the first perforated plate reaches the required mixing ratio for the mud, a cylinder is activated to move a rack. The rack, in turn, rotates a gear and a fixed rod, which in turn rotates the second perforated plate. This interleaving of the holes in the second and first perforated plates separates the water or bentonite inside the material bucket, allowing for precise control of the water or bentonite quantity. This solves the problem of inconvenient pre-mixing of water and bentonite, which can lead to errors such as adding too much or too little water or bentonite during mixing, thus reducing the quality of the final mud product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall equipment of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the material bucket of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 This is a three-dimensional schematic diagram of the first perforated plate of this utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the scale plate of this utility model.

[0022] In the diagram: 1. Base plate; 2. L-shaped plate; 3. Mixing box; 4. Material bucket; 5. Discharge port; 6. Solenoid valve; 7. Proportioning mechanism; 701. Support plate; 702. Motor; 703. Threaded rod; 704. Threaded block; 705. U-shaped rod; 706. First perforated plate; 707. Second perforated plate; 8. Fixing rod; 9. Gear; 10. Rack; 11. Cylinder; 12. Scale plate; 13. Triangular block; 14. Placement slot; 15. T-shaped block; 16. Connecting block; 17. Hollow block; 18. Rotating block; 19. Reinforcing rod; 20. Protective shell. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a device for controlling the mud ratio of bored piles in sandy loess geological conditions. (Refer to...) Figure 1-5 A mud mixing control device for bored piles in sandy loess soil includes a base plate 1, a mixing box 3 on the top of the base plate 1, an L-shaped plate 2 fixedly connected to the top of the base plate 1, a material bucket 4 fixedly connected to one side of the L-shaped plate 2, a discharge port 5 on the surface of the material bucket 4, a solenoid valve 6 fixedly connected to the inner cavity of the discharge port 5, and a mixing mechanism 7 in the inner cavity of the material bucket 4. The upper side of the base plate 1 can be used to place the mixing box 3, and the L-shaped plate 2 can also support the material bucket 4, so that the material bucket 4 can be located on the upper side of the mixing box 3. There are two discharge ports 5 and two material buckets 4, which can be used to put water and bentonite respectively, and they fall into the interior of the mixing box 3 through the discharge ports 5 for mixing. The solenoid valve 6 can open and close the discharge ports 5 to control the material feeding.

[0026] The proportioning mechanism 7 includes a support plate 701, one side of which is fixedly connected to the surface of the material barrel 4. A motor 702 is fixedly connected to the top of the support plate 701. A threaded rod 703 is fixedly connected to the output shaft of the motor 702. A threaded block 704 is threadedly connected to the surface of the threaded rod 703. A U-shaped rod 705 is provided in the inner cavity of the material barrel 4. One side of the U-shaped rod 705 is fixedly connected to one side of the threaded block 704. A first perforated plate 706 is provided in the inner cavity of the material barrel 4. The top of the first perforated plate 706 is fixedly connected to the bottom of the U-shaped rod 705. A second perforated plate 707 is rotatably connected to the top of the first perforated plate 706.

[0027] The support plate 701 can be used to support the motor 702, so that the support plate 701 can be stably placed on the outside of the material barrel 4. The motor 702 can drive the threaded rod 703 to rotate, making the rotation of the threaded rod 703 more convenient. When the threaded rod 703 rotates, it can drive the threaded block 704 to move up and down. The threaded block 704 can be used to connect the U-shaped rod 705, so that the threaded block 704 can drive the U-shaped rod 705 to move up and down together. The U-shaped rod 705 can not only connect the threaded block 704 on the outside of the material barrel 4, but also connect the first perforated plate 706 inside the material barrel 4, so that the threaded block 704 can pass through the first perforated plate 706 when it moves. The first perforated plate 706 moves up and down together with the second perforated plate 707. Both the first perforated plate 706 and the second perforated plate 707 are located inside the material barrel 4 and can move up and down in the water or powdered bentonite inside the material barrel 4 through the holes. When the first perforated plate 706 and the second perforated plate 707 move to the designated position, the second perforated plate 707 can rotate on the upper side of the first perforated plate 706, so that the holes of the first perforated plate 706 and the second perforated plate 707 are staggered, which can separate the water or bentonite inside the material barrel 4, thereby accurately controlling the amount of water or bentonite, making its ratio more precise and controllable, and preventing the amount from being too much or too little.

[0028] Reference Figure 5-6 A fixing rod 8 is fixedly connected to the top of the second perforated plate 707, and a gear 9 is fixedly connected to the surface of the fixing rod 8. A cylinder 11 is fixedly connected to the top of the material barrel 4, and a rack 10 is fixedly connected to one side of the cylinder 11. The teeth of the rack 10 mesh with the teeth of the gear 9. The proportioning mechanism 7 can be used to connect the second perforated plate 707 and the fixing rod 8, so that the second perforated plate 707 can drive the fixing rod 8 to move together. The cylinder 11 can be used to connect the rack 10, so that the rack 10 can be stably placed on the surface of the gear 9 and mesh with the gear 9. This allows the cylinder 11 to drive the rack 10 to move, thereby driving the gear 9 and the second perforated plate 707 to rotate, making the rotation of the second perforated plate 707 more convenient.

[0029] Reference Figure 6 A scale plate 12 is fixedly connected to the surface of the material bucket 4. A triangular block 13 is provided on one side of the scale plate 12. One side of the triangular block 13 is fixedly connected to one side of the threaded block 704. The triangular block 13 can be moved together by the threaded block 704. The scale plate 12 is located on one side of the triangular block 13. When the threaded block 704 moves the first perforated plate 706 to perform quantitative separation, the quantitative separation and proportion control can be accurately performed by measuring the distance the triangular block 13 moves on one side of the scale plate 12.

[0030] Reference Figure 4 The surface of the first perforated plate 706 is provided with a placement groove 14. A T-shaped block 15 is rotatably connected to the inner cavity of the placement groove 14. The top of the T-shaped block 15 is fixedly connected to the bottom of the second perforated plate 707. The interior of the placement groove 14 can be used to place the T-shaped block 15, and the T-shaped block 15 can limit the second perforated plate 707, so that the second perforated plate 707 can be more stable when rotating on the upper side of the first perforated plate 706 and is not easy to detach from the first perforated plate 706.

[0031] Reference Figure 6 A connecting block 16 is fixedly connected to the top of the material bucket 4, and a hollow block 17 is fixedly connected to the top of the connecting block 16. A rotating block 18 is provided in the inner cavity of the hollow block 17. The bottom of the rotating block 18 is fixedly connected to the bottom of the threaded rod 703. The connecting block 16 can be used to support the hollow block 17, and the hollow block 17 can be reinforced by the rotating block 18, so that the threaded rod 703 is more stable on the upper side of the motor 702.

[0032] Reference Figure 6 A reinforcing rod 19 is fixedly connected to the inner cavity of the material barrel 4. The top of the reinforcing rod 19 is fixedly connected to the bottom of the cylinder 11. The reinforcing rod 19 can support the cylinder 11, making the cylinder 11 more stable on the upper side of the material barrel 4.

[0033] Reference Figure 3The surface of the motor 702 is provided with a protective shell 20. The bottom of the protective shell 20 is fixedly connected to the top of the support plate 701. The protective shell 20 can protect the motor 702, making it less likely to get wet.

[0034] Working Principle: Before drilling and grouting the sandy loess piles, water and bentonite can be added to the two material buckets 4 respectively. Both material buckets 4 are equipped with a mixing mechanism 7. When it is necessary to mix water and bentonite to form mud, the required ratio of water and bentonite can be determined first. Then, the motor 702 is started to drive the threaded rod 703 to rotate. The threaded rod 703 will drive the threaded block 704 to move. Simultaneously, the threaded block 704 will drive the first perforated plate 706 inside the material bucket 4 to move via the U-shaped rod 705. At the same time, the threaded block 704 will also drive the triangular block 13 to slide on the surface of the scale plate 12 to precisely move the position of the first perforated plate 706. The first perforated plate 706 will drive the second perforated plate 707 to move together. The water and bentonite inside the material bucket 4 will not obstruct the movement of the first perforated plate 706 and the second perforated plate 707 with holes. When the first perforated plate 706 moves to the position required for mud mixing... When determining the mixing ratio, cylinder 11 can be activated to move rack 10, which in turn drives gear 9 and fixed rod 8 to rotate. Simultaneously, fixed rod 8 drives the second perforated plate 707 to rotate as well, causing the holes of the second perforated plate 707 and the first perforated plate 706 to interlock. This allows for the separation of water or bentonite inside the material bucket 4, thereby accurately controlling the amount of water or bentonite and making the mixing ratio more precise and controllable, preventing situations where there is too much or too little. Finally, solenoid valve 6 is opened to open outlet 5, allowing water and bentonite to fall into the mixing tank 3 for mixing. The mixture can be further mixed into slurry by rotating an external stirring rod. This slurry is then used for grouting the boreholes in sandy loess. This solves the problem of inconvenience in accurately controlling the mixing ratio of water and bentonite beforehand, which can easily lead to situations where too much or too little water or bentonite is added during mixing, thus reducing the quality of the finished slurry.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A kind of sandy loess geological bored pile mud proportioning control device, including bottom plate (1), it is characterized by: A mixing box (3) is provided on the top of the base plate (1), an L-shaped plate (2) is fixedly connected to the top of the base plate (1), a material bucket (4) is fixedly connected to one side of the L-shaped plate (2), a discharge port (5) is provided on the surface of the material bucket (4), a solenoid valve (6) is fixedly connected to the inner cavity of the discharge port (5), and a proportioning mechanism (7) is provided in the inner cavity of the material bucket (4). The proportioning mechanism (7) includes a support plate (701), one side of which is fixedly connected to the surface of the material barrel (4), a motor (702) is fixedly connected to the top of the support plate (701), a threaded rod (703) is fixedly connected to the output shaft of the motor (702), a threaded block (704) is threadedly connected to the surface of the threaded rod (703), a U-shaped rod (705) is provided in the inner cavity of the material barrel (4), one side of the U-shaped rod (705) is fixedly connected to one side of the threaded block (704), a first perforated plate (706) is provided in the inner cavity of the material barrel (4), the top of the first perforated plate (706) is fixedly connected to the bottom of the U-shaped rod (705), and a second perforated plate (707) is rotatably connected to the top of the first perforated plate (706).

2. The device for controlling the proportioning of the slurry for the sand loess bored pile according to claim 1, characterized in that: A fixing rod (8) is fixedly connected to the top of the second perforated plate (707), and a gear (9) is fixedly connected to the surface of the fixing rod (8). A cylinder (11) is fixedly connected to the top of the material bucket (4), and a rack (10) is fixedly connected to one side of the cylinder (11). The teeth of the rack (10) mesh with the teeth of the gear (9).

3. The device for controlling the proportioning of the slurry for the sand loess bored pile according to claim 1, characterized in that: A scale plate (12) is fixedly connected to the surface of the material bucket (4). A triangular block (13) is provided on one side of the scale plate (12). One side of the triangular block (13) is fixedly connected to one side of the threaded block (704).

4. The loess geological cast-in-place pile slurry proportioning control device according to claim 1, characterized in that: The surface of the first perforated plate (706) is provided with a placement groove (14), and a T-shaped block (15) is rotatably connected to the inner cavity of the placement groove (14). The top of the T-shaped block (15) is fixedly connected to the bottom of the second perforated plate (707).

5. The loess geological cast-in-place pile slurry proportioning control device according to claim 1, characterized in that: A connecting block (16) is fixedly connected to the top of the material bucket (4), and a hollow block (17) is fixedly connected to the top of the connecting block (16). A rotating block (18) is provided in the inner cavity of the hollow block (17), and the bottom of the rotating block (18) is fixedly connected to the bottom of the threaded rod (703).

6. The loess geological cast-in-place pile slurry proportioning control device according to claim 2, characterized in that: The inner cavity of the material barrel (4) is fixedly connected to a reinforcing rod (19), and the top of the reinforcing rod (19) is fixedly connected to the bottom of the cylinder (11).

7. The loess geological cast-in-place pile slurry proportioning control device according to claim 1, characterized in that: The surface of the motor (702) is provided with a protective shell (20), and the bottom of the protective shell (20) is fixedly connected to the top of the support plate (701).